| In order to compare the industrial influence of the emerging electrochemical energy storage technology and overcome the deficiencies of current emerging technology industry impact studies,such as the index system was not perfect and technical content was not considered,a comprehensive comparison system of industrial influences based on the evaluation of patent index models and supplemented by technical subject analysis and bibliometrics was constructed.In the model evaluation section,the paper introduces the following indicators: technical value degree,layout in international market,strength of R & D cooperation,cooperation density of industry,university and research,the number of patent applications.Based on the improved rough set attribute importance weight method,the comprehensive comparison of industrial influence of zinc air battery,sodium ion battery,aluminum air battery and reference technology: sodium sulfur battery for six consecutive years was carried out.Through the comprehensive analysis based on model evaluation based on the patent index,supplemented by technical topic analysis and bibliometric analysis,the following conclusions are obtained: the zinc-air battery industry has the largest influence,but there is still a big gap with the reference technology: sodium-sulfur battery;the industrial impact of sodium-ion batteries has shown a trend of “blow-out” growth in recent years,slightly lower than that of zinc-air battery;aluminum air battery has the least industrial influence.However,in recent years,due to the research and development of universities on sodium-ion battery,the development speed of sodium-ion battery is much higher than that of zinc-air battery,and the main focus is on the technical level.Academia's attention may also make its industry influence grow the most in the future.Although the width of technical research and application of technology are narrower than those of zinc-air batteries,there are few patents in the hands of the enterprises.These have led to a narrower influence width of industrial influence than zinc air battery and the transformation of scientific research results is also more difficult than that of zinc-air battery.But the academia's represented by university continued investment in research and development of sodium-ion batteries will broaden the scope of their research.And if sodium-ion battery increase business participation,it will be beneficial to the technical application of sodium-ion batteries.And if zinc-air battery maintain current R&D investment.with low cooperative R&D intensity,the industrial impact of sodium-ion battery is expected to exceed zinc-air batteries soon. |
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